Cattle-guard.



No. 798,091. PATBNTED AUG. 29, 1905. G- OK. S. CONWAY. CATTLE GUARD.

APPLICATION I'ILBD AUG. 27, 1904.

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No. 798,091. PATENTED AUG. 29, 1905. G. OK. s. UONWA'Z.

CATTLE GUARD.

APPLICATION FILED AUG. 27. 1904.

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G. '0,K. S. CONWAY.

CATTLE GUARD.

APPLIOATION FILED AUG. 27, 1904.

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lWHa-woo e0 UNITED STATES PATENT OFFICE.

GEORGE OKILL STUART CONWAY, OF STONEFIELD, CANADA, ASSIGNOR OF ONE-HALF TO WILLIAM HERBERT CLARENDON MUSSEN, OF MON- TREAL, CANADA.

CATTLE-GUARD.

Specification of Letters Patent.

Patented Aug. 29, 1905.

To all whom, it may concern:

Be it known that I, GEORGE OKILL STUART CONWAY, of Stonefield, county of Argenteuil, Province of Quebec, Canada, have invented certain new and useful Improvements in Cattle-Guards; and I do hereby declare that the following is a full, clear, and exact description of the same.

The invention may be said, briefly, to consist of certain improvements in the means effecting an operative connection between a tread and a lifting-fence whereby the movable fence is supported substantially in equilibrium and is more easily and more quickly operated.

For full comprehension, however, of the invention reference must be had to the accompanying drawings, forming a part of this specification, and wherein- Figure 1 is a plan view of my improved cattle-guard in place ready for operation. Fig. 2 is a vertical sectional view taken on line A A, Fig. 1. Fig. 3 is a detail perspective view of the base-leaf of the fulcrum-hinge of my improved cattle-guard. Fig. 4 is a detail perspective view of a fulcrum bracket or lever acting in conjunction with such base-leaf forming the upper leaf of the hinge. Fig. 5 is a vertical sectional view of the guard, taken on line B B, Fig. 2. Fig. 6 is a detail side elevation of the connecting-plate whereby the lifting-fence is connected to the pivot-bar of my improved cattle-guard, and Fig. 7 is adetail side elevation of the counterpoise-lever forming a part of the operating mechanism. Fig. 8 is a horizontal sectional view taken just beneath the tread and illustrating particularly the means for operatively connecting the tread to the fence and pivotally connecting the former to the base, such means being shown in plan view; and Fig. 9 is a perspective view with a portion of the tread in place. Fig. 10 is-a perspective view of the bracket by which one of the fulcrum-rods is rotatably secured to the under side of the tread.

My improved lifting-fence is made, preferably, of metal and in three sections, adapted to be located, respectively, one, d, between the rails c c of the track and the others, eand f, one at each side of the track. Each of these sections consists of a series of bars or arms 6, each having secured'rigidly to one end thereof a plate 9, having a square opening it therein and a set-screw 2', adapted to secure the arm to a square pivot-bar to be presently further alluded to, while the opposite ends of the bars or arms of each fence-section are connected together by a corrugated fence-rail 7c.

The bars 6 of each fence-section are mounted, through the medium of the plates upon a pivot-bar Z, (before mentioned,) which extends from side to side of and beneath each section of the tread'of my improved cattleguard, thereby connecting together the members of each section.

My improved tread consists of three sections at o w, located similarly to the fence-sections and each consisting of a series of treads on, of substantially triangular cross-section,

leaf 2, secured rigidly to the cross-support 0 by bolts p or otherwise and hinged, as at 3, to one end of a base hinge-leaf 4, secured rigidly upon the base-tie r and having a series of lugs 5 formed integrally with the opposite end thereof.

Each fence-section is operatively connected to its corresponding tread-section by a pair of cam-platesti, projecting laterally from the lower portion of each fence-section, such camplates being slotted, as at 7, and having an upwardly-inclined cam-surface 8. A hingelever 9 is fulcrumed at one end through the medium of a square fulcrum-bar 10 to the upwardly-projecting lugs 5 upon thebase hingeleaf 4, such fulcrum-bar extending beneath the three members of the tread and also beneath the rails c and through square holes in the series of hinge-levers 9 in order to cause the fence-sections to move collectively and in unison when any one of the tread-sections is trodden upon, while a pair of counterpoiselevers 12 are mounted upon the opposite ends of this bar, the function of the latter being to normally yieldingly maintain the treads and fence-section in their normal position.

Each of the hinge-levers 9 is slotted longitudinally, as at 13, and each of the upper unison.

hinge-leaves 2 has a laterally-projecting studpin 14 upon one end projecting into the slot 13 in the hinge-lever 9 adjacent thereto.

A stud-pin 15 upon each of the hinge-levers acts as a support for the fence members which are supported thereon through the medium of the cam-plates 6, and a second stud-pin 16 upon the end of the hinge-lever projects into the slot 7 of the cam-plate.

The operation of my improved cattle-guard isas follows: Upon the cattle treading upon the end of either tread-section adjacent to the roadway m such tread will be tilted and each fence-section will be caused to suddenly rise to a substantially vertical position and in sodoing will strike the cattle in the face. This action is caused as follows: When cattle step upon either of the tread-sectionsm, such treadsection will tilt upon its fulcrum-point 3 and through pin 11 and the walls of slot 13 raise the lever 9, which in turn through stud-pins 15 and 16 and cam 8 and the walls of slot 7 throws up the fence-section contiguous there- Sirnultaneously the lever 9 rotates and the fulcrum-bar 10 and the other levers 9 are raised, thus causing them through their pin projections 15 and 16 to turn the cam-plates 6 upwardly and raise all the fence-sections in Incidentally the other tread-sections are lowered.

The tread-sections as they lie in their horizontal position are almost in equilibrium, but with a slight preponderance of weight in the portion on the side of the fulcrum-point opposite to the roadway w, and thereforein the the guard back to its normal position.

What I claim is as follows:

1. In a cattle-guard the combination with a single tread pivotally supported near its center upon a stationary base and adapted to have one end tilted below the other, a fence pivoted at a point between the ends of such tread and such fence being adapted to be raised and lowered, of means effecting an operative connection between the tread and fence whereby the latter is raised toward the lowered end of the tread upon the tilting of the said tread.

2. In a cattle-guard, the combination with a tiltable tread, a fence adapted to be raised and lowered, and a base supporting the tread,

of a laterally-projecting cam upon the fence, means pivotally connecting the tread to the base, and a hinge-lever pivotally connected at one end to the base, at its opposite end to the laterally-projecting cam upon the fence, and between its ends to the tread, for the purpose set forth.

3. In a cattle-guard, the combination with a tiltable tread, a fence adapted to be raised and lowered, and a base supporting the tread, of a laterally-projecting cam upon the fence, said cam being slotted at right angles to the fence, laterally -projecting stud -pins carried by the tread, a hinge-lever pivotally connected at oneend to the base said hinge-lever being slotted and such slot being adapted to receive the stud-pins upon the tread, and a stud-pin mounted rigidly upon the free end of the lever and projecting into the slot in the cam, substantially as described and for the purpose set forth.

4. In a cattle-guard, the combination with a tiltable tread, a series of fence-sections adapted to be raised and lowered, and a basersupporting the tread, of a laterally-projecting cam-plate 6 upon each fence-section such camplates being slotted at right angles to the fence-sections, a series of hinge-levers 9 each having a pair of studs 15 and 16, the latter being at one'end thereof and projecting into the slot of one of the cam-plates, the other, 15, being in position to act upon the cam-surface of said plate, the opposite end of each hingelever having a square opening and the body of such lever between its ends being longitudinally slotted, a series of upwardly-projecting lugs 5 "rigidlysecured to the base and having circular openings in their upper ends, a square fulcrum-bar 10 passing through such lugs and through the square openings in the hinge-levers, a pair of counterpoise-levers 12 one mounted upon each end of the fulcrum-' bar, and the tread having a series of laterallyprojecting stud-pins 14 adapted to project into the slots in the levers, substantially as described and for the purpose set forth.

In testimony whereof I have aflixed my signature in presence of two witnesses.

GEORGE OKILL STUART CONWAY.

'Witnesses:

WILLIAM P. MoFEA'r, FRED. J. SEARs. 

